---
title: "Isola New Energy vs JA Solar - Brand Comparison | ComparePV"
description: "Compare Isola New Energy vs JA Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/isola-new-energy-vs-ja-solar"
---

# Isola New Energy vs JA Solar

JA Solar has the broader catalog (504 vs 55 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | Isola New Energy | JA Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Taizhou, Zhejiang Province | Beijing |
| Founded | 2006 | 2005 |
| Employees | 101 - 500 | 37,289 |
| Annual capacity | 3 GW/year | 100+ GW/year |
| Tier 1 |  | yes |
| Listed |  | SZSE: 002459 |
| Website |  | [https://www.jasolar.com](https://www.jasolar.com) |

Zhejiang Isola New Energy Co., Ltd. is a tech-oriented enterprise involved in R&D, production, and installation of solar products including solar cells, solar panels, solar street lighting and on/off-grid solar systems. The company has a strong supplier network and operates three factories in Ningbo and Shandong...

JA Solar is a global leader in the manufacturing of high-performance photovoltaic products. Founded in 2005, the company designs, develops, manufactures, and sells solar cells and modules. JA Solar's products are used in ground-mounted power plants, commercial & industrial rooftop PV systems, and residential rooftop...


## Catalog & Power


| Measure | Isola New Energy | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 55 | 504 | +449 |
| Max Power | 720 W | 740 W | +20 W |
| Avg Power | 333 W | 456 W | +123 W |


## Efficiency


| Measure | Isola New Energy | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.27% | 24.80% | +1.53 pp |
| Avg Efficiency | 19.82% | 21.13% | +1.32 pp |


## Reliability & Warranty


| Measure | Isola New Energy | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.341%/°C | -0.322%/°C | +0.019 |
| Bifacial Share | 9 (16%) | 238 (47%) | +31 pp |
| Avg Warranty | 28.7 yrs | 27.9 yrs | +0.8 yr |


## Efficiency distribution

JA Solar skews to higher efficiency: 15% of lineup is 23%+


| Efficiency band | Isola New Energy | JA Solar |
| --- | --- | --- |
| \<20% | 28 (50.9%) | 112 (22.2%) |
| 20-21% | 14 (25.5%) | 99 (19.6%) |
| 21-22% | 4 (7.3%) | 112 (22.2%) |
| 22-23% | 5 (9.1%) | 107 (21.2%) |
| 23%+ | 4 (7.3%) | 74 (14.7%) |


## Power distribution

JA Solar offers more 600W+ panels (14% of lineup)


| Power band | Isola New Energy | JA Solar |
| --- | --- | --- |
| \<400W | 34 (61.8%) | 142 (28.2%) |
| 400-499W | 13 (23.6%) | 173 (34.3%) |
| 500-599W | 5 (9.1%) | 120 (23.8%) |
| 700W+ | 3 (5.5%) | 9 (1.8%) |
| 600-699W | 0 | 60 (11.9%) |


## Cell technology

Dominant cell tech: **Flexible** (29%)

Dominant cell tech: **PERC** (49%)


| Technology | Isola New Energy | JA Solar |
| --- | --- | --- |
| Unknown | 22 (40.0%) | 16 (3.2%) |
| Flexible | 16 (29.1%) | 0 |
| TOPCon | 9 (16.4%) | 146 (29.0%) |
| PERC | 8 (14.5%) | 247 (49.0%) |
| N-type | 0 | 90 (17.9%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, Isola New Energy


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [YH720W-33MHD/MH](https://comparepv.com/panel/isola-new-energy-yh720w-33mhd-mh) | 720 | 23.2 | -0.350 | Monocrystalline |
| 2 | [YH715W-33MHD/MH](https://comparepv.com/panel/isola-new-energy-yh715w-33mhd-mh) | 715 | 23.0 | -0.350 | Monocrystalline |
| 3 | [YH710W-33MHD/MH](https://comparepv.com/panel/isola-new-energy-yh710w-33mhd-mh) | 710 | 22.9 | -0.350 | Monocrystalline |
| 4 | [YH590W-36MHD/MH](https://comparepv.com/panel/isola-new-energy-yh590w-36mhd-mh) | 590 | 22.8 | -0.300 | Monocrystalline |
| 5 | [YH585W-36MHD/MH](https://comparepv.com/panel/isola-new-energy-yh585w-36mhd-mh) | 585 | 22.6 | -0.300 | Monocrystalline |
| 6 | [YH550W-36MH](https://comparepv.com/panel/isola-new-energy-yh550w-36mh) | 550 | 21.3 | -0.350 | Monocrystalline |
| 7 | [YH545W-36MH](https://comparepv.com/panel/isola-new-energy-yh545w-36mh) | 545 | 21.1 | -0.350 | Monocrystalline |
| 8 | [YH540W-36MH](https://comparepv.com/panel/isola-new-energy-yh540w-36mh) | 540 | 20.9 | -0.350 | Monocrystalline |
| 9 | [YH465W-27MHD](https://comparepv.com/panel/isola-new-energy-yh465w-27mhd) | 465 | 23.3 | -0.240 | Monocrystalline |
| 10 | [YH460W-36MH](https://comparepv.com/panel/isola-new-energy-yh460w-36mh) | 460 | 21.2 | -0.350 | Monocrystalline |


## Top panels, JA Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JAM66D46-740/LB](https://comparepv.com/panel/ja-solar-jam66d46-740-lb) | 740 | 23.8 | -0.290 | Monocrystalline |
| 2 | [JAM66D46-735/LB](https://comparepv.com/panel/ja-solar-jam66d46-735-lb) | 735 | 23.7 | -0.290 | Monocrystalline |
| 3 | [JAM66D46-730/LB](https://comparepv.com/panel/ja-solar-jam66d46-730-lb) | 730 | 23.5 | -0.290 | Monocrystalline |
| 4 | [JAM66D46-725/LB](https://comparepv.com/panel/ja-solar-jam66d46-725-lb) | 725 | 23.3 | -0.290 | Monocrystalline |
| 5 | [JAM66D46-720/LB](https://comparepv.com/panel/ja-solar-jam66d46-720-lb) | 720 | 23.2 | -0.290 | Monocrystalline |
| 6 | [JAM66D46-715/LB](https://comparepv.com/panel/ja-solar-jam66d46-715-lb) | 715 | 23.0 | -0.290 | Monocrystalline |
| 7 | [JAM66D46-710/LB](https://comparepv.com/panel/ja-solar-jam66d46-710-lb) | 710 | 22.9 | -0.290 | Monocrystalline |
| 8 | [JAM66D46-705/LB](https://comparepv.com/panel/ja-solar-jam66d46-705-lb) | 705 | 22.7 | -0.290 | Monocrystalline |
| 9 | [JAM66D46-700/LB](https://comparepv.com/panel/ja-solar-jam66d46-700-lb) | 700 | 22.5 | -0.290 | Monocrystalline |
| 10 | [JAM66D46-695/LB](https://comparepv.com/panel/ja-solar-jam66d46-695-lb) | 695 | 22.4 | -0.290 | Monocrystalline |


## Summary

Isola New Energy is a Chinese solar module manufacturer headquartered in Zhejiang province, founded in 2006 with a workforce of 101 to 500 employees and a stated production capacity of 3 GW. JA Solar, founded a year earlier in 2005 and listed on the Shenzhen Stock Exchange, is one of the global leaders in the photovoltaic industry, employing over 37,000 people and operating production capacity exceeding 100 GW. JA Solar holds Tier 1 bankable status from both S&P Global Commodity Insights and BloombergNEF, and jointly topped Wood Mackenzie's Global Solar Module Manufacturer Ranking for the first half of 2025. Isola New Energy, by contrast, is a considerably smaller manufacturer without a published Tier 1 classification, representing a fraction of JA Solar's footprint in terms of output, workforce, and global distribution reach.

In terms of portfolio breadth and technical performance, JA Solar offers 524 module variants compared to Isola's 55, with a maximum panel power of 740 Wp versus 720 Wp for Isola, and a significantly higher average output of 441.7 Wp against Isola's 333.4 Wp. JA Solar's portfolio peaks at 24.4% module efficiency with a portfolio average of 20.87%, while Isola reaches 23.27% at its highest and averages 19.82%. JA Solar also leads on bifacial adoption - 44.3% of its portfolio is bifacial compared to 16.4% for Isola - making it better suited for utility-scale ground-mount and commercial C&I projects that benefit from rear-side irradiance gains. Its dominant cell technology is PERC at 52.1% of the portfolio, complemented by a growing TOPCon offering. JA Solar's average temperature coefficient of -0.323%/°C is marginally better than Isola's -0.336%/°C, translating to slightly stronger real-world output during warm months. Isola's average warranty across its portfolio stands at 30 years, modestly above JA Solar's 27.85-year average, which may appeal to buyers prioritizing long product guarantees in residential contexts.

For international buyers and project developers weighing the two options, JA Solar is the stronger choice across virtually all deployment scales - its Tier 1 bankable status satisfies lender requirements for project finance, its 100+ GW capacity ensures supply chain reliability, and its broad portfolio covers everything from residential rooftop installs to large utility-scale ground-mount farms. Isola New Energy may be a viable consideration for smaller residential deployments where extended warranty terms and potentially competitive pricing are the primary criteria, but the absence of Tier 1 recognition and limited production scale warrant careful due diligence before any significant volume commitment.

Written by claude-sonnet from the figures above.


## Other comparisons

- [Isola New Energy vs A.B. Energy](https://comparepv.com/isola-new-energy-vs-a-b-energy)
- [AE Solar vs JA Solar](https://comparepv.com/ae-solar-vs-ja-solar)
- [Isola New Energy vs AEET](https://comparepv.com/isola-new-energy-vs-aeet)
- [AIKO vs JA Solar](https://comparepv.com/aiko-vs-ja-solar)
- [Isola New Energy vs AKCOME](https://comparepv.com/isola-new-energy-vs-akcome)
- [ARTsolar vs JA Solar](https://comparepv.com/artsolar-vs-ja-solar)


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Source: https://comparepv.com/isola-new-energy-vs-ja-solar

Not in this file, on the page: the distributions above drawn as charts.